Floating board-to-board connector assembly

Abstract

The floating type board-to-board connector assembly comprises a plug connector and a socket connector, the plug connector comprises a fixed seat, a floating seat and a plurality of plug terminals, each plug terminal is provided with a flat plate contact section, an elastic connection section and a welding section, the elastic connection section is located in an actuation space of the fixed seat, and the welding section is located in an actuation space of the fixed seat. The two ends of the elastic connection section respectively extend towards the flat plate contact section and the welding section. In addition, the socket connector comprises a base and a plurality of socket terminals arranged on the base, the elastic contact section of each socket terminal is located at the insertion part of the base and is in contact with the flat plate contact section, and the floating seat is connected with the fixed seat through the elastic connection section so as to maintain the elastic contact section to be in contact with the flat plate contact section. Therefore, the socket connector and the plug connector are in floating butt joint so as to absorb external force during vibration, and a good electrical connection effect is kept.

Description

Technical Field

[0001] This utility model relates to an electrical connector, and more particularly to a floating board-to-board connector assembly. Background Technology

[0002] Board-to-board connectors are mainly used to enable corresponding mechanical devices to establish electrical connections using their respective circuit boards, thereby allowing electrical signals and power to be transmitted and conducted.

[0003] Because conventional board-to-board socket connectors and board-to-board plug connectors are soldered onto the circuit board and their positions are fixed after mating, this structure is prone to many problems. For example, board-to-board socket connectors and board-to-board plug connectors cannot be moved after mating. In environments with frequent shaking, such as during vehicle movement, the shaking can easily cause existing board-to-board socket connectors and board-to-board plug connectors to detach or even break, resulting in poor signal transmission or even signal loss in automotive electronic equipment. Utility Model Content

[0004] In view of the above problems, in one embodiment, a floating board-to-board connector assembly is proposed, including a plug connector and a socket connector, wherein the plug connector includes a fixed base, a floating base and a plurality of plug terminals, the fixed base has an operating space, the floating base is located in the operating space, the floating base includes a tongue plate, and each plug terminal includes a flat contact section, a flexible connection section and a soldering section, the flexible connection section is located in the operating space of the fixed base, the flat contact section extends from one end of the flexible connection section to the surface of the tongue plate, and the soldering section extends from the other end of the flexible connection section and is exposed outside the fixed base. Additionally, the socket connector includes a base and a plurality of socket terminals. The base includes an insertion portion having a mating space for tongue insertion. Each socket terminal is disposed on the base and includes a resilient contact section, an extension section, and a solder section. The resilient contact section is located in the mating space and is adapted to contact the flat contact section. The extension section is located on the top surface of the base and bends along one of the outer sides of the base. The resilient contact section extends from one end of the extension section to a lower opening. The solder section extends from the other end of the extension section and protrudes outward from the outer side of the base. The floating seat is connected to the fixed seat by the resilient connecting sections of each plug terminal to maintain the resilient contact section in contact with the flat contact section.

[0005] In some embodiments, the floating seat has a first position on at least one axis, and the resilient connecting segments of each plug terminal provide a restoring force to maintain the floating seat in the first position.

[0006] Preferably, at least one axis includes a first axis and a second axis. The floating seat moves on the first axis and has a first position and a second position. When the floating seat moves from the first position to the second position, the floating seat approaches the socket connector. Additionally, the floating seat moves on the second axis and has a first position and a third position. When the floating seat moves from the first position to the third position, the floating seat approaches or moves away from one side of the fixed seat.

[0007] Preferably, the fixing seat of the plug connector has a through slot, which forms an actuation space. The floating seat further includes a base plate located in the through slot, and the elastic connecting sections of each plug terminal are located in the gap between the base plate and the fixing seat. The tongue plate protrudes outward from the base plate, and the center line of the tongue plate is aligned with the central axis of the base plate.

[0008] Preferably, the flat contact section of each plug terminal is located in the terminal groove of the tongue plate, the elastic connection section hooks the terminal groove and the through-groove terminal fixing groove, and the welding section extends outward along the bottom surface of the terminal fixing groove.

[0009] Preferably, the plug connector further includes two plug pressure plates, each plug pressure plate covering the base plate of the floating seat and the fixed seat.

[0010] Preferably, the base of the socket connector further includes two abutment portions and two socket pressure plates. The abutment portions protrude outward from the outer side of the base, and the two socket pressure plates are respectively disposed on the two abutment portions. Each socket pressure plate has a solder foot, and the solder foot, the solder section of each socket terminal, and the bottom surface of each abutment portion are located on the same horizontal plane.

[0011] Preferably, the base further includes a plurality of terminal slots and a plurality of terminal channels. The terminal slots are located between two abutment portions, and the soldering section of each socket terminal protrudes out of each terminal slot. Each terminal channel extends from the top surface of the base to the bottom surface of the base, and the terminal channel corresponds to the terminal slot. The elastic contact section of each socket terminal is located in each terminal channel.

[0012] Preferably, each terminal channel includes a mating section and a lower opening section. The mating sections of two opposing terminal channels are connected and have a mating interface to form a mating space. The lower opening section is connected to the mating section and has a lower opening located on the bottom surface of the base and on one side of the mating interface.

[0013] Preferably, the distance between the top of the extension of each socket terminal and the soldering section is less than the distance between the top of the extension and the free end of the elastic contact section.

[0014] Due to the adoption of the above technical solution, this utility model has the following beneficial effects:

[0015] The socket connector and plug connector are floating mating types, and the floating seat of the plug connector can move along multiple axes within the operating space of the fixed seat to absorb external forces during vibration. At the same time, it can also maintain the stability of the floating seat and maintain a good electrical connection. Attached Figure Description

[0016] Figure 1 An exploded view of a floating board-to-board connector assembly mounted on a circuit board, according to some embodiments, is shown.

[0017] Figure 2 An exploded view of a floating board-to-board connector assembly according to some embodiments is shown.

[0018] Figure 3 An exploded view of a socket connector according to some embodiments is shown.

[0019] Figure 4 Drawing basis Figure 3 A cross-sectional view at position 4-4.

[0020] Figure 5 Drawing basis Figure 3 A cross-sectional view at position 5-5.

[0021] Figure 6 A perspective view of a socket terminal according to some embodiments is shown.

[0022] Figure 7 An exploded view of a plug connector according to some embodiments is shown.

[0023] Figure 8 A perspective view of plug terminals according to some embodiments is shown.

[0024] Figure 9 A perspective view of a floating board-to-board connector assembly according to some embodiments is shown, without showing the circuit board.

[0025] Figure 10 Drawing basis Figure 9 A cross-sectional view showing the position marked 10-10.

[0026] Figure 11 Drawing basis Figure 9 The cross-sectional diagram (I) at position 11-11 is shown. The circuit board is represented by a dotted chain line, the floating seat is represented by a solid line indicating that the floating seat is in its original position P1, and the floating seat is represented by a dashed line indicating that the floating seat is in its wobbling position.

[0027] Figure 12 Drawing basis Figure 9 The cross-sectional diagram (II) at position 11-11 shows the floating seat in the vibration position, with the circuit board represented by a single chain line.

[0028] Symbol Explanation

[0029] 1: Socket connector

[0030] 10: Base

[0031] 100: Insertion Section

[0032] 102: Docking Space

[0033] 103: Terminal slot

[0034] 103a: Terminal slot

[0035] 103b: Terminal Channel

[0036] 103c: Upper open segment

[0037] 103d: Docking section

[0038] 103e: Lower opening segment

[0039] 104: Resistance Section

[0040] 105: Top partition wall

[0041] 106: Guide post hole

[0042] 107: Bottom partition wall

[0043] 108: Lower opening

[0044] 110: Outer side

[0045] 111,114: Bottom surface

[0046] 112: Interface

[0047] 12: Socket terminals

[0048] 120: Elastic contact section

[0049] 120a:convex part

[0050] 120b: Free end

[0051] 122: Extension

[0052] 122a: Outer side

[0053] 122b: Top

[0054] 122c: Inner side

[0055] 124: Welding section

[0056] 14: Socket pressure plate

[0057] 140: Solder foot

[0058] 2: Plug Connector

[0059] 20: Fixture

[0060] 21: Through slot

[0061] 200: Action Space

[0062] 22: Floating Seat

[0063] 220: Tongue plate

[0064] 221:Substrate

[0065] 224: Terminal recess

[0066] 225: Guide post

[0067] 23: Terminal fixing slot

[0068] 24: Plug terminals

[0069] 240: Flat plate contact section

[0070] 242: Flexible connection section

[0071] 242a: First fastening part

[0072] 242b: Second locking part

[0073] 242c: Bending section

[0074] 244: Welding section

[0075] 26: Plug pressure plate

[0076] 3,4: Circuit Board

[0077] 30: Socket

[0078] 31, 32: Surface

[0079] D1, D2: Width

[0080] L1, L2: Central axis

[0081] H1, H2, H3: Vertical distance

[0082] H4, H8, H22: Height

[0083] H5: Length

[0084] Hb: Thickness

[0085] Hd: Depth

[0086] W1, W2, W3: Width

[0087] P1: Original position

[0088] P2: Shaking position

[0089] P3: Vibration location. Detailed Implementation

[0090] Please see Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 11 , Figure 1 An exploded view of a floating board-to-board connector assembly mounted on circuit boards 3 and 4 according to some embodiments is shown. Figure 2 An exploded view of a floating board-to-board connector assembly according to some embodiments is shown; Figure 6 A perspective view of a socket terminal 12 according to some embodiments is shown; Figure 7 An exploded view of the plug connector 2 according to some embodiments is shown; Figure 8 A perspective view of the plug terminal 24 according to some embodiments is shown; Figure 9 A perspective view of a floating board-to-board connector assembly according to some embodiments is shown, excluding circuit boards 3 and 4; and Figure 11 Drawing basis Figure 9 The cross-sectional diagram (I) at position 11-11 is shown. Circuit boards 3 and 4 are represented by a dotted chain line. The floating seat 22 is represented by a solid line, indicating that the floating seat 22 is in its original position P1. The floating seat 22 is represented by a dashed line, indicating that the floating seat 22 is in its wobbling position P2.

[0091] Please see Figure 1 A floating board-to-board connector assembly includes a socket connector 1 and a plug connector 2. The socket connector 1 is adapted to be inserted into a socket 30 on a circuit board 3 to form a recessed structure. The socket connector 1 is adapted to electrically connect to the plug connector 2, and the plug connector 2 is adapted to be mounted on the surface of a circuit board 4.

[0092] Please see Figure 1 , Figure 2 and Figure 11 The socket connector 1 mainly includes a base 10 and a plurality of socket terminals 12. The base 10 includes an insertion part 100, which passes through the circuit board 3, meaning that the insertion part 100 extends from one surface 31 of the circuit board 3 to the other surface 32 of the circuit board 3 (see...). Figure 11 The mating space 102 of the insertion part 100 is a space extending from the interface 112 toward the top surface of the base 10 (see...). Figure 2The tongue plate 220 of the floating seat 22 of the plug connector 2 is inserted into the base 10. Additionally, the socket terminal 12 is disposed on the base 10, and the socket terminal 12 is adapted to contact (or electrically connect) with the plug terminal 24 of the plug connector 2 in the mating space 102. Please refer to [further details omitted]. Figure 6 and Figure 11 Each socket terminal 12 includes a resilient contact section 120, an extension section 122, and a soldering section 124. The resilient contact section 120 is located in the mating space 102 and is adapted to contact the flat contact section 240 of the plug terminal 24. The resilient contact section 120 extends from one end of the extension section 122 to a lower opening 108 (see...). Figure 11 The welded section 124 extends from one end of the extension section 122 and protrudes outward from the outer surface 110 of the base 10 (see [reference needed]). Figure 2 ).

[0093] Additionally, please see Figure 2 and Figure 7 The plug connector 2 includes a fixed base 20, a floating base 22, and a plurality of plug terminals 24. The fixed base 20 has a through slot 21 to form an actuation space 200. The floating base 22 is located in the actuation space 200 and extends a tongue plate 220. The two ends of each plug terminal 24 are respectively connected to the fixed base 20 and the floating base 22. That is, the fixed base 20 and the floating base 22 are indirectly connected through the plug terminals 24, and the fixed base 20 and the floating base 22 do not contact each other.

[0094] Specifically, please refer to the following: Figure 1 and Figure 8 The plug terminal 24 includes a flat contact section 240, a flexible connecting section 242, and a soldering section 244. The flexible connecting section 242 is located in the actuation space 200 of the fixed base 20. The flat contact section 240 extends from one end of the flexible connecting section 242 to one surface of the tongue plate 220. The soldering section 244 extends from the other end of the flexible connecting section 242 and is exposed outside the fixed base 20. This means that the flat contact section 240 is located on the surface of the floating base 22, the flexible connecting section 242 is located in the through slot 21 (actuation space 200) of the fixed base 20, and the soldering section 244 is exposed outside the fixed base 20. The two ends of the flexible connecting section 242 extend towards the flat contact section 240 and the soldering section 244, respectively. Please refer to... Figure 11 The floating seat 22 is connected to the fixed seat 20 via the elastic connecting section 242 of the plug terminal 24 to maintain the flat contact section 240 in contact with the elastic contact section 120 of the socket terminal 12. Specifically, when the plug connector 2 mates with the socket connector 1, the elastic contact section 120 of the socket terminal 12 is located in the mating space 102 and contacts the flat contact section 240 of the plug terminal 24, wherein the flat contact section 240 of the plug terminal 24 defines the contact range in which the flat contact section 240 moves vertically relative to the elastic contact section 120 of the socket terminal 12.

[0095] In this way, the socket connector 1 and the plug connector 2 are in a floating docking configuration, and the floating seat 22 of the plug connector 2 can move along multiple axes within the operating space 200 of the fixed seat 20 to absorb external forces during vibration. At the same time, it can maintain the stability of the floating seat 22 and maintain a good electrical connection.

[0096] Please see Figure 9 , Figure 11 and Figure 12 In some embodiments, the floating seat 22 has an initial position P1 on at least one axis, and the resilient connecting segment 242 of the plug terminal 24 provides a restoring force to maintain the floating seat 22 in the initial position P1. For example, see [link to relevant documentation]. Figure 11 When the circuit board 4 or the floating seat 22 is subjected to an external force and moves along the Z-axis, the floating seat 22 moves accordingly from its original position P1 to its wobbling position P2, meaning that... Figure 11 From the perspective of the fixed base 20 (operation space 200), the floating seat 22 moves closer to the right side and away from the left side. At this time, the restoring force of the elastic connecting section 242 of the plug terminal 24 can move the floating seat 22 from the wobbling position P2 back to the original position P1, so as to maintain the floating seat 22 in the original position P1. For another example, please refer to [reference needed]. Figure 11 and Figure 12 When circuit board 4 or floating seat 22 is subjected to external force and moves along the Y-axis, floating seat 22 correspondingly moves from its original position P1 (see...). Figure 11 Move towards vibration location P3 (see...) Figure 12 This means that the floating seat 22 moves closer to the socket connector 1. At this time, the restoring force of the elastic connecting segment 242 of the plug terminal 24 can move the floating seat 22 from the vibration position P3 to the original position P1, so as to maintain the floating seat 22 in the original position P1.

[0097] Therefore, the floating base 22 has a range of motion within the operating space 200, at least in the Z-axis (horizontal direction) and Y-axis (vertical direction). This maintains the stability of the floating base 22 and reduces the risk of detachment or breakage of the floating board-to-board connector assembly. Furthermore, during shaking or vibration, the flat contact section 240 of the plug terminal 24 and the elastic contact section 120 of the socket terminal 12 maintain continuous contact, ensuring a good electrical connection.

[0098] Furthermore, the structural details of the socket connector 1 and plug connector 2 in some embodiments are described below.

[0099] Please see Figure 2 and Figure 11 In some embodiments, the socket connector 1 further includes a socket pressure plate 14, and the base 10 further includes a retaining portion 104, which abuts against the surface 31 of the circuit board 3 (see [reference needed]). Figure 11A socket pressure plate 14 is disposed on the support portion 104. The socket pressure plate 14 has solder feet 140. The solder feet 140, the soldering section 124 of the socket terminal 12, and the bottom surface 114 of the support portion 104 are located on the same horizontal plane. The solder feet 140, the soldering section 124, and the bottom surface 114 of the support portion 104 contact the surface 31 of the circuit board 3. That is, the solder feet 140, the soldering section 124, and the bottom surface 114 of the support portion 104 are at the same height on the outer side surface 110 of the base 10. The height of the outer side surface 110 is the vertical distance from the bottom surface 111 of the base 10. In some embodiments, the solder feet 140 of the socket pressure plate 14 and the solder sections 124 of the socket terminal 12 are located at the middle horizontal position of the socket connector 1 (base 10), which means that the height position of the solder feet 140 on the outer side 110 of the base 10 (i.e. the thickness of the abutment portion 104) is substantially equal to the vertical distance from the bottom surface 114 of the abutment portion 104 to the bottom surface 111 of the insertion portion 100.

[0100] Please see Figure 1 When the socket connector 1 is inserted into the socket 30 of the circuit board 3, the insertion part 100 and the supporting part 104 are respectively located on opposite sides of the circuit board 3. The supporting part 104 protrudes outward from the outer side 110 of the base 10, along... Figure 1 From an X-axis perspective, the width of the supporting portion 104 is greater than the width of the socket 30 or the width of the insertion portion 100. In some embodiments, the cross-sectional shape of the supporting portion 104 and the insertion portion 100 is T-shaped. Furthermore, since the socket terminal 12 is used for electrical connection and is easily detached or broken by external force, it does not have a structural fixing function. Therefore, the socket pressure plate 14 can strengthen the insertion structure of the socket connector 1 (base 10) onto the circuit board 3.

[0101] Therefore, the height of the soldering section 124 of the socket terminal 12 on the outer side 110 of the base 10 corresponds to the height of the entire socket connector 1 recessed onto the circuit board 3. When the socket connector 1 is inserted into the socket 30 on the circuit board 3, the soldering feet 140 of the socket pressure plate 14 and the soldering section 124 of the socket terminal 12 are located on the surface of the circuit board 3. This recessed design is easy to solder, and compared to a plate-type socket connector (that is, the bottom surface of the socket connector 1 is soldered to the surface of the circuit board 3), this recessed socket connector 1 can reduce the distance between the circuit board 3 and the circuit board 4 on the plug connector 2. In addition, the socket connector 1 can also adjust the height design of the soldering section 124 and the soldering feet 140 on the outer side 110 of the base 10, or adjust the thickness design of the abutment part 104, to improve the installation success rate, depending on the installation space limitations of the electronic device.

[0102] Please see Figure 3 , Figure 4 and Figure 5 , Figure 3 An exploded view of a socket connector 1 according to some embodiments is shown; Figure 4 Drawing basis Figure 3 A cross-sectional view at position 4-4; and Figure 5 Drawing basis Figure 3 A cross-sectional view at position 5-5.

[0103] Please see Figure 2 , Figure 3 and Figure 5 In some embodiments, the base 10 of the socket connector 1 also has two abutment portions 104, and the insertion portion 100 of the socket connector 1 has a mating interface 112 and two guide pin holes 106. The mating interface 112 is located between the two guide pin holes 106, and the center line of the mating interface 112 and the center line of the two guide pin holes 106 are aligned with the central axis L1 of the bottom surface 111 of the insertion portion 100 (see [reference needed]). Figure 2 Each guide post hole 106 extends from the bottom surface 111 of the base 10 (insertion part 100) toward the top surface of the base 10. Please refer to Figure 3 and Figure 4 In some embodiments, the base 10 further includes a terminal groove 103 and a plurality of terminal channels 103b. The terminal groove 103 is located between two abutment portions 104, and has a plurality of terminal slots 103a. The terminal slots 103a are disposed on the outer surface 110 of the base 10, and the length H5 of the terminal slot 103a is less than or equal to the thickness Hb of the abutment portion 104. Additionally, the terminal channels 103b extend from the top surface of the base 10 (terminal groove 103) toward the bottom surface 111 of the base 10 (insertion portion 100), and one terminal channel 103b corresponds to one terminal slot 103a. Specifically, with... Figure 4 For example, terminal channel 103b has an upper opening section 103c, a mating section 103d, and a lower opening section 103e. The top partition wall 105 of the base 10 separates the upper opening sections 103c of the two opposing terminal channels 103b, and the two opposing mating sections 103d are connected and have a mating interface 112 to form a mating space 102 (see...). Figure 2 The lower opening segment 103e connects to the mating segment 103d, and the lower opening segment 103e has a lower opening 108. The bottom partition wall 107 of the base 10 separates the lower opening 108 from the mating interface 112. See also Figure 2 The lower openings 108 located on the bottom surface 111 of the insertion part 100 are symmetrically arranged on both sides of the interface 112 with the central axis L1 as the center line.

[0104] Please refer to the following: Figure 3 , Figure 4 and Figure 6The following describes the structural details of a socket terminal 12 located in a corresponding terminal slot 103a and a terminal channel 103b, using some embodiments. The soldering section 124 of the socket terminal 12 protrudes from the terminal slot 103a, and an extension section 122 is located in both the terminal slot 103a and the terminal channel 103b. The extension section 122 has an outer portion 122a, a top portion 122b, and an inner portion 122c. The top portion 122b is located on the top surface of the base 10 (terminal slot portion 103), the outer portion 122a is located in the terminal slot 103a, and the inner portion 122c is located in the terminal channel 103b. The flange of the inner portion 122c engages with the mating section 103d of the terminal channel 103b. Furthermore, the resilient contact section 120 of the socket terminal 12 has a protrusion 120a and a free end 120b. The protrusion 120a is located in the mating section 103d of the terminal channel 103b, and the free end 120b is located in the lower opening section 103e.

[0105] Further, please refer to Figure 6 The vertical distance H1 between the top 122b of the extension 122 and the welded section 124 (i.e., the length of the outer side 122a of the extension 122, or Figure 3 The length H5 of the terminal slot 103a is less than the vertical distance H3 between the top 122b and the free end 120b of the elastic contact section 120. The vertical distance H3 between the top 122b and the free end 120b is substantially equal to the vertical distance between the top surface of the terminal slot 103 and the bottom surface 111 of the insertion section 100 (i.e., the depth of the terminal channel 103b). Furthermore, the vertical distance H1 between the top 122b and the solder section 124 is less than the vertical distance H2 between the top 122b and the protrusion 120a. Therefore, the design of the socket connector 1 being recessed onto the circuit board 3 can be adapted by adjusting the height difference between the solder feet (solder section 124) and the electrical contact end (protrusion 120a) of the socket terminal 12.

[0106] Please see Figure 5 and Figure 11 In some embodiments, the free end 120b of the resilient contact segment 120 may selectively abut against and be away from the bottom spacer wall 107. For example, see [link to relevant documentation]. Figure 11 When the socket connector 1 mates with the plug connector 2, the floating seat 22 of the plug connector 2 will spread apart the protrusions 120a of the two opposing elastic contact sections 120, so that the free end 120b is away from the bottom partition wall 107. When the socket connector 1 and the plug connector 2 have not yet mated, the free end 120b abuts against the bottom partition wall 107.

[0107] On the other hand, please see Figure 2 and Figure 10 , Figure 10 Drawing basis Figure 9A cross-sectional view at position 10-10 is shown in the diagram. In some embodiments, the floating seat 22 of the plug connector 2 includes a base plate 221, a tongue plate 220, and two guide posts 225. The tongue plate 220 and the guide posts 225 protrude outward from the base plate 221. The tongue plate 220 is located between the two guide posts 225. The centerline of the tongue plate 220 and the centerline of the guide posts 225 are both aligned with the central axis L2 of the base plate 221 (see...). Figure 2 The guide post 225 is adapted to be correspondingly mated with the guide post hole 106 of the socket connector 1, and the tongue plate 220 is adapted to be correspondingly mated with the mating interface 112 (matting space 102) of the socket connector 1.

[0108] In this way, since the socket connector 1 and the plug connector 2 are floating mating devices, the guiding and alignment function provided by the guide post 225 during the mating process helps the user accurately mate the tongue plate 220 into the mating interface 112 of the socket connector 1. Therefore, the floating board-to-board connector assembly has a blind mating function and can reduce the risk of damage to appearance or function caused by misalignment due to improper operation.

[0109] Please see Figure 10 In some embodiments, the height H8 of the guide post 225 of the plug connector 2 is greater than or equal to the height H22 of the tongue plate 220, the width D2 of the base of the guide post 225 is greater than the width D1 of the top of the guide post 225, and the cross-sectional shape of the base of the guide post 225 matches the opening shape of the guide post hole 106. In some embodiments, the height H8 of the guide post 225 is not lower than the height H22 of the tongue plate 220, and the guide post 225 is a column or cone-shaped column with a narrow top and a wide bottom. There is at least one guide post 225. Preferably, the number of guide posts 225 is even and they are symmetrically arranged on both sides of the tongue plate 220. Accordingly, the guiding and alignment effect of the guide posts 225 can be improved.

[0110] Additionally, please see Figure 7 and Figure 10 In some embodiments, the plug connector 2 further includes two plug pressure plates 26, which cover the substrate 221 of the fixed seat 20 and the floating seat 22. The plug pressure plates 26 are adapted to fix the fixed seat 20 to the circuit board 4. The plug pressure plates 26 can also prevent the floating seat 22 from moving too far away from the through slot 21 of the fixed seat 20 due to external force, so as to maintain the floating seat 22 at a horizontal position comparable to the fixed seat 20. However, the plug pressure plates 26 do not interfere with the horizontal movement of the floating seat 22.

[0111] Please see Figure 7 and Figure 8The following describes the specific structure of a plug terminal 24 located between a fixed base 20 and a floating base 22, using some embodiments. The tongue plate 220 of the floating base 22 has a plurality of terminal grooves 224, and the through groove 21 of the fixed base 20 has a plurality of terminal fixing grooves 23. One terminal groove 224 corresponds to one terminal fixing groove 23. One plug terminal 24 is located in the corresponding terminal groove 224 and terminal fixing groove 23. The flat contact section 240 of the plug terminal 24 is located in the terminal groove 224. The elastic connection section 242 is located in the gap between the substrate 221 and the fixed base 20. The soldering section 244 extends outward along the bottom surface of the terminal fixing groove 23 (fixed base 20).

[0112] Specifically, please refer to Figure 8 The elastic connection section 242 of the plug terminal 24 includes a first locking portion 242a, a bent portion 242c, and a second locking portion 242b. The bent portion 242c is located between the first locking portion 242a and the second locking portion 242b. The flange of the first locking portion 242a hooks the base plate 221 of the floating seat 22. The bent portion 242c extends from the first locking portion 242a along the bottom surface of the base plate 221 and bends toward the terminal fixing groove 23 (fixed seat 20). The flange of the second locking portion 242b hooks the terminal fixing groove 23. In some embodiments, the width W3 of the welding section 244 of the plug terminal 24 is smaller than the width W2 of the bent portion 242c. The width W2 of the bent portion 242c is the same as the width W1 of the flat contact section 240. The height H4 of the bent portion 242c is less than or equal to the depth Hd of the through groove 21 of the fixed seat 20 (see...). Figure 10 ).

Claims

1. A floating board-to-board connector assembly, characterized in that... : A plug connector, comprising: A fixed base with an operating space; A floating seat, located in the actuation space, the floating seat including a tongue plate; and A plurality of plug terminals, each plug terminal including a flat contact section, a resilient connecting section, and a soldering section, wherein the resilient connecting section is located in the actuating space of the fixed base, the flat contact section extends from one end of the resilient connecting section to a surface of the tongue plate, and the soldering section extends from the other end of the resilient connecting section and is exposed outside the fixed base; and A socket connector, comprising: A base, including an insertion portion having a mating space for insertion of the tongue plate; and A plurality of socket terminals are provided with the base. Each socket terminal includes a resilient contact section, an extension section and a soldering section. The resilient contact section is located in the mating space and is adapted to contact the flat contact section. The extension section is located on the top surface of the base and bends along one of the outer surfaces of the base. The resilient contact section extends from one end of the extension section to a lower opening. The soldering section extends from the other end of the extension section and protrudes outward from the outer surface of the base. The floating seat is connected to the fixed seat by the elastic connecting section of each of the plug terminals to maintain the elastic contact section in contact with the flat contact section.

2. The floating board-to-board connector assembly according to claim 1, characterized in that... The floating seat has a first position on at least one axis, and the resilient connecting segment of each of the plug terminals provides a restoring force to maintain the floating seat in the first position.

3. The floating board-to-board connector assembly according to claim 2, characterized in that... The at least one axis includes a first axis and a second axis, the floating seat moves on the first axis and has a first position and a second position, and when the floating seat moves from the first position to the second position, the floating seat approaches the socket connector; and The floating seat moves on the second axis and has a first position and a third position. When the floating seat moves from the first position to the third position, the floating seat moves closer to or away from the side of the fixed seat.

4. The floating board-to-board connector assembly according to claim 1, characterized in that... The retaining base of the plug connector has a through slot that forms the actuation space; and The floating seat further includes: A base plate is located in the slot, and the elastic connecting sections of each of the plug terminals are located in the gap between the base plate and the fixing seat; wherein the tongue plate protrudes outward from the base plate, and the center line of the tongue plate is aligned with a central axis of the base plate.

5. The floating board-to-board connector assembly according to claim 4, characterized in that... The flat contact section of each plug terminal is located in a terminal groove of the tongue plate, the elastic connecting section hooks the terminal groove and the terminal fixing groove of the through groove, and the welding section extends outward along the bottom surface of the terminal fixing groove.

6. The floating board-to-board connector assembly according to claim 4, characterized in that... The plug connector further includes two plug pressure plates, each of which covers the base plate of the floating seat and the fixed seat.

7. The floating board-to-board connector assembly according to claim 1, characterized in that... The base of the socket connector further includes: Two supporting portions protrude outward from the outer side of the base; and Two socket pressure plates are respectively disposed on the two abutment portions. Each socket pressure plate has a welding foot. The welding foot, the welding section of each socket terminal, and a bottom surface of each abutment portion are located on the same horizontal plane.

8. The floating board-to-board connector assembly according to claim 7, characterized in that... The base further includes: A plurality of terminal slots are located between the two abutment portions, the terminal slot portion having a plurality of terminal slots, and the soldering section of each of the socket terminals protruding outward from each of the terminal slots; and A plurality of terminal channels, each terminal channel extending from a top surface of the base toward a bottom surface of the base, each terminal channel corresponding to a terminal slot, and the resilient contact section of each socket terminal located in each terminal channel.

9. The floating board-to-board connector assembly according to claim 8, characterized in that... Each of the terminal channels includes: A docking segment, wherein the docking segments of two opposing terminal channels are connected and have a pair of interfaces to form the docking space; and A lower opening section is connected to the docking section. The lower opening section has a lower opening, which is located on the bottom surface of the base and on one side of the docking interface.

10. The floating board-to-board connector assembly according to claim 1, characterized in that... The distance between the top of one of the extensions of each of the socket terminals and the soldering section is less than the distance between the top of the extension and a free end of the resilient contact section.

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